94 lines
2.5 KiB
Ruby
94 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::JwtAuthenticatable do
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let(:test_class) do
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Class.new do
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include Gitlab::JwtAuthenticatable
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def self.secret_path
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Rails.root.join('tmp', 'tests', '.jwt_shared_secret')
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end
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end
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end
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before do
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begin
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File.delete(test_class.secret_path)
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rescue Errno::ENOENT
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end
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test_class.write_secret
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end
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describe '.secret' do
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subject(:secret) { test_class.secret }
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it 'returns 32 bytes' do
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expect(secret).to be_a(String)
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expect(secret.length).to eq(32)
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expect(secret.encoding).to eq(Encoding::ASCII_8BIT)
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end
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it 'accepts a trailing newline' do
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File.open(test_class.secret_path, 'a') { |f| f.write "\n" }
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expect(secret.length).to eq(32)
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end
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it 'raises an exception if the secret file cannot be read' do
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File.delete(test_class.secret_path)
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expect { secret }.to raise_exception(Errno::ENOENT)
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end
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it 'raises an exception if the secret file contains the wrong number of bytes' do
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File.truncate(test_class.secret_path, 0)
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expect { secret }.to raise_exception(RuntimeError)
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end
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end
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describe '.write_secret' do
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it 'uses mode 0600' do
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expect(File.stat(test_class.secret_path).mode & 0777).to eq(0600)
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end
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it 'writes base64 data' do
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bytes = Base64.strict_decode64(File.read(test_class.secret_path))
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expect(bytes).not_to be_empty
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end
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end
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describe '.decode_jwt_for_issuer' do
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let(:payload) { { 'iss' => 'test_issuer' } }
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it 'accepts a correct header' do
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encoded_message = JWT.encode(payload, test_class.secret, 'HS256')
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expect { test_class.decode_jwt_for_issuer('test_issuer', encoded_message) }.not_to raise_error
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end
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it 'raises an error when the JWT is not signed' do
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encoded_message = JWT.encode(payload, nil, 'none')
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expect { test_class.decode_jwt_for_issuer('test_issuer', encoded_message) }.to raise_error(JWT::DecodeError)
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end
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it 'raises an error when the header is signed with the wrong secret' do
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encoded_message = JWT.encode(payload, 'wrongsecret', 'HS256')
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expect { test_class.decode_jwt_for_issuer('test_issuer', encoded_message) }.to raise_error(JWT::DecodeError)
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end
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it 'raises an error when the issuer is incorrect' do
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payload['iss'] = 'somebody else'
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encoded_message = JWT.encode(payload, test_class.secret, 'HS256')
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expect { test_class.decode_jwt_for_issuer('test_issuer', encoded_message) }.to raise_error(JWT::DecodeError)
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end
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end
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end
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